THE actor already has a 17-month-old daughter Tabitha with Chinese actress Tinglan Hong, now the woman who is 19 years his junior has given birth to his little boy.

HUGH GRANT yesterday revealed he has become a father for the second time – with the woman who he once described as a “fleeting affair”.

The actor, 52, already has a 17-month-old daughter Tabitha with Chinese actress Tinglan Hong, who is 19 years his junior.

The Love Actually star, left, took to Twitter to announce that Tinglan had now given him a son.

He told his 76,000 followers: “Am thrilled my daughter now has a brother.

“Adore them both to an uncool degree. They have a fab mum.”

The actor started dating Tinglan in January 2011 when they were spotted kissing in a London pub.Shortly after Tabitha was born in September 2011, Grant’s publicist said: “I can confirm Hugh Grant is the delighted father of a baby girl.

“He and the mother had a fleeting affair and, while this was not planned, Hugh could not be happier or more supportive.

“He and the mother have discussed everything and are on very friendly terms.”

The star – who enjoyed long-term relationships with Liz Hurley and Jemina Khan and was infamously arrested in Hollywood in 1995 for lewd conduct with prostitute Divine Brown – has regularly spoken about his wish to be a dad.

Last April, he opened his heart about how Tabitha’s arrival had changed him.

He told US chat show host Ellen DeGeneres: “Everyone was right all these years, saying, ‘Hugh, why don’t you have some children? It changes your life.’”